Information
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Patent Grant
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6219855
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Patent Number
6,219,855
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Date Filed
Monday, April 3, 200024 years ago
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Date Issued
Tuesday, April 24, 200123 years ago
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Inventors
-
Original Assignees
-
Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 004 354
- 004 356
- 004 357
- 004 358
- 004 359
- 004 355
- 004 353
- 222 336
- 222 340
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International Classifications
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Abstract
A toilet bowl in combination with a pressurized flush tank is presented wherein the pressurized tank has a spring, a float piston, a water inlet control valve set, a water discharge control unit and a container lid. The water inlet control valve set includes a valve unit, a valve cover, a small spring, a control piston, a seal ring, a float and a control wire. The water discharge control unit has a control handle, a link bar, a seal ring, two link bar fixing seats, a seal cap and a set of discharge fixing ring. When water is discharged, the compressed spring applies a force to the float piston so that the float piston will exert pressure on water which rushes into a toilet bowl as a result.
Description
BACKGROUND OF THE INVENTION
The present invention relates to an improved toilet bowl in combination with a pressurized flush tank. The pressurized tank is made up of a spring, a float piston, a water inlet control valve set, a water discharge control unit and a container lid. The water inlet control valve set includes a valve, a valve cover, a small spring, a control piston, a seal ring, a float base and a control cord. The water discharge control unit has a control handle, a link bar, a seal ring, two link bar fixing seats, a water stopper and a set of discharge fixing ring. When water is discharged, the compressed spring applies a force to the float piston so that the float piston will exert pressure on water which rushes into a toilet bowl as a result.
Referring to
FIG. 1
, a conventional toilet bowl
10
sectionally shown is provided with a plurality of flushing holes
11
defined on the top periphery of the bowl with slant flushing slopes
12
disposed inside thereof A water collection area
13
is disposed at the bottom of the toilet bowl
10
. A downwardly extending water discharge tunnel
14
is disposed at a rear section of the flushing slope
12
and communicates with the same water source of the flushing holes
11
at the top end thereof and is in communication with the water collection area
13
at the bottom end thereof. The front section of the water collection area
13
extends in connection to a goose neck shaped dumping pipe
15
which has a front stop section
16
at the front end thereof and a rear stop section
17
at the rear end thereof. When the water collection area
13
is full of water, foul odor in the dumping pipe
15
can be stopped from entering and a vacuum chamber
18
is defined at the upper space of the dumping pipe
15
.
Referring to
FIG. 2
, it shows the direction of water flow. When water flushes into the toilet bowl, it will be first discharged from the top of the bowl out of the flushing holes
11
and flushes down along the flushing slopes
12
, producing a turbulent whirlpool. At the same time, water flushes down from the water discharge tunnel
14
to permit the whirling water to be discharged out of the dumping pipe
15
. It will produce a siphon state in the vacuum chamber
18
so that waste in the toilet bowl can be sucked out of the same as a result of the siphon state.
There are some disadvantages associated with the prior toilet bowl given as below:
1. The water discharge tunnel
14
has a steep angle, almost a right angle, at the top end thereof, so, water flushing out of an outlet will become weak as a result of vast change of angle of the water flow. Thus, it takes more water to effectively flush waste in a toilet bowl out
2. The water collection area
13
remains less quantity of water in a very short period of time and then a reverse flow will be produced in the water collection area
13
by the water discharge tunnel
14
. As a result, waste or fowl odor in the dumping pipe
15
will be sucked back. It is not hygienic to most people.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a toilet bowl in combination with a pressurized flush tank which is operated without any electrical power to get water pressurized to flush waste and water out of a toilet bowl whereby the flush tank can be reduced in size and water discharged from the tank is economically saved.
Another object of the present invention is to provide an improved toilet bowl in combination with a pressurized flush tank. The toilet bowl of the present invention is provided with a back flushing tunnel which can build up a siphon state on filth waste and water being discharged in a vacuum chamber with a siphon state produced simultaneously so that filth water and waste can be dumped out effectively with less water used.
One further object of the present invention is to provide an improved toilet bowl in combination with a pressurized flush tank. The toilet bowl has a smoother dumping path which has no sharp angles of its structure so that filthy water and waste can be more directly dumped with no whirlpool produced in the water collection area in use. It is more hygienic than a conventional one.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a sectional diagram showing the operation mode of the present invention;
FIG. 2
is another sectional diagram showing the operation mode thereof;
FIG. 3
is a perspective diagram showing the present invention;
FIG. 4
is a perspective diagram showing exploded components of a pressurized flush tank;
FIG. 5
is a sectional diagram showing the pressurized flush tank of the present invention;
FIG. 6
is a sectional diagram of an improved toilet bowl of the present invention;
FIG. 7
is a sectional diagram showing the pressurized tank full of water;
FIG. 8
is a sectional diagram showing the pressurized tank running out of water;
FIG. 9
is a diagram showing water being flushed in the toilet bowl.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIG. 3
, the toilet bowl in combination with a pressurized flush tank of the present invention includes a tank
2
which is connected to a toilet bowl
90
by a pipe
80
. The tank
2
comprises a tank embodiment
20
, a top lid
30
, a spring
40
, a float piston
50
, a water inlet control valve set
60
and a water outlet control valve set
70
, as shown in details in
FIGS. 4
,
5
.
The tank embodiment
20
of a long cylindrical form has a top peripheral flange having a reduced diameter. A pair of symmetric trapezoidal retaining blocks
21
project from the top peripheral flange. A pair of symmetric vertical slide tracks
22
are axially disposed on the inner wall on the upper portion of the cylindrical tank embodiment
20
. On the wall of the lower portion of the tank embodiment
20
and at two symmetric positions are disposed a pipe hole
23
and a shaft hole
24
and at the bottom plane is disposed a water outlet pipe hole
25
.
The top lid
30
has a vent
31
disposed adjacent the peripherally projected edge of a housing recess
32
for locating one end of a spring
40
and has a pair of trapezoidal locking blocks
33
symmetrically disposed on an inner peripheral edge thereof.
The float piston
50
has a pair of symmetrically disposed vertical grooves
51
on the periphery thereof, which are defined in correspondence to the vertical slide tracks
22
of the tank embodiment for slidable engagement in installation. On the top face of the float piston
50
are disposed two securing projections
52
for retaining the spring
40
in place and adjacent the bottom periphery of the float piston
50
is disposed a downwardly extended positioning plate
53
. On the bottom face of the float piston
50
is disposed a float receiving cavity
54
.
The water inlet control valve set
60
is made up of a valve unit
61
, a valve cap
62
, a spring
63
, a control piston
64
, a sealing ring
65
, a float
66
and a control wire
67
. The sealing ring
65
is engaged with the pipe hole
23
of the tank embodiment
20
so as to permit the valve unit
61
to stick out of the tank embodiment and connect to a water inlet pipe. The valve unit
61
has an internal receiving space
611
and a water outlet
612
on the wall thereof. A control piston
64
housed in the receiving space
611
of the valve unit
61
is provided with a discharge tunnel
641
. In the receiving space
611
and on the top surface of the control piston
64
is disposed a securing ring element
642
. The valve cap
62
is fixedly mounted to the top of the valve unit
61
with a wire bore
621
defined at the center thereof. At the bottom of the float
66
is disposed a retaining ring
661
. One end of the control wire
67
led through the wire bore
621
is secured to securing ring element
642
of the control piston
64
and the other end of the control wire
67
is fixed to the retaining ring
661
of the float
66
.
The water outlet control valve set
70
comprises a control handle
71
, a link bar
72
, a sealing ring
73
, a pair of link bar mounts
74
, a seal cap
75
and a discharge pipe head
76
fixed to the water outlet pipe hole
25
of the tank embodiment
20
. A pipe
80
is connected to the outlet pipe hole
25
. The two link bar mounts
74
fixed to the bottom of the tank embodiment
20
are respectively provided with a shaft hole
741
. A sealing element
73
is disposed at the shaft hole
24
. The link bar
72
is pivotal engaged with the two shaft holes
741
of the link bar mounts
74
and the sealing element
73
. The control handle
71
is secured to an externally exposed end of the link bar
72
by a screw. The seal cap
75
is removably fixed to the link bar
72
and is just in sealing engagement with the discharge pipe head
76
.
Thereby, the spring
40
is fixed to the two securing projections
52
of the top surface of the float piston
50
. Then the float piston
52
is slidably engaged with the vertical slide tracks
22
inside of the tank embodiment
20
by way of the vertical grooves
51
thereof. The top lid
30
is secured to the top of the tank embodiment
20
by rotation of the top lid
30
so that the retaining blocks
21
can be in locking engagement with the locking blocks
33
. At the same time, the spring
40
is just fitted in the housing recess
32
of the top lid
30
.
Referring to
FIG. 6
, the toilet bowl
90
of the present invention is sectionally shown. A water inlet path
91
is disposed at the top corner and periphery at the rear end of the toilet bowl
90
and on the periphery of the toile bowl
90
are defined a plurality of flush holes
92
communicating with water inlet path
91
. On the interior of the toilet bowl
90
are defined downwardly extended flushing slopes
93
and at the bottom of the toilet bowl
90
is disposed a water collection area
94
. A front water flushing passage
95
is defined behind one of the flushing slopes
93
. The front water flushing passage
95
is in communication with the water inlet path
91
at the top end and communicates with the water collection area
94
at the bottom end thereof. At a rear end of the water collection area
94
is disposed a goose-like waste discharge path
96
which is connected to a sewage tunnel. At the front end of the waste discharge path
96
is disposed a front stop edge
961
in smooth connection to one of the flushing slope
93
and at the rear end of the water collection area
94
is placed a rear stop edge
962
.
When water collection area
94
is filled up with water having a level reaching the edges of the front stop edge
961
and the rear stop edge
962
, foul odor produced in the waste discharge path
96
can be stopped from distributing into a room via the waste discharge path
96
. A vacuum chamber
97
is formed in the sharply curved area of the waste discharge path
96
. Communicating with the vacuum chamber
97
is a rear water flushing passage
98
which communicates with the water inlet path
91
. The front water flushing passage
95
having its outlet end in alignment with the opening of the goose like waste discharge path
96
.
Referring to FIGS.
7
,
8
,
9
, when the tank
20
is to be filled with water, i.e., it is empty then, the float piston
50
is being forced by the spring
40
to a proper position near the bottom of the tank
20
. At this time the float
66
is engaged with the float receiving cavity
54
on the underside of the float piston
50
, and the control wire
67
is in a loose state; as a result, the spring
63
in the valve unit
61
is downwardly extended and forces the control piston
64
to such a position that the discharge tunnel
641
of the control piston
64
, the water outlet
612
of the valve unit
61
and the water pipe in communication with the valve unit are in linear alignment. Thereby water can be delivered into the tank
20
accordingly.
As the control handle
71
is pressed down to get the toilet bowl flushed, the seal cap
75
is activated by the link bar
72
so as to get the discharge pipe head
76
opened for permitting water to be delivered out of the water inlet path
91
of the toilet bowl
90
via the pipe
80
. Then, the spring
40
has a larger force than the internal force of the valve unit
61
, so, the spring
40
will exert a downward force on the float piston
50
which will pressurize water to flow into the water inlet path
91
of the toilet bowl
90
and to flush out of the flush holes
92
. As a result, water will flush down along the flushing slopes
93
to produce a turbulent whirlpool and at the same time, the pressurized water will smoothly rush down the water flushing passage
95
and flow into the waste discharge path
96
. Simultaneously, a siphon state will be produced in the vacuum chamber
97
in the waste discharge path
96
accordingly and a water flow flushes down the rear water flushing passage
98
, resulting in building up of the siphon state in the vacuum chamber
97
of the waste discharge path
96
to effectively suck waste and filthy water out of the waste discharge path
96
. At then, the float
66
will move down to cause the control piston
64
to position in such a place that water can flow into the tank
20
via the valve unit
61
. The lifted seal cap
75
will be touched and forced to close by the positioning plate
53
extended downwardly from the float piston
50
.
As water continues pouring in with the level of water in the tank
20
going up, the float piston
50
lifts up, making the spring
40
compressed. During the period, the float
66
will be lifted up along with the raise of water level in the tank
20
. As long as the control wire
67
is not completely extended to its preset length, water will keep on flushing in the tank
20
until the float
66
moves to such a position that the control wire
67
is fully straightened up. As a result of the buoyancy of the float
66
larger than the force of the spring
63
disposed between the control piston
64
and the valve cap
62
, the control piston
64
is lifted up to a summit position to cut off the inlet of water via the discharge tunnel
641
into the tank
20
. Since the valve unit
61
and the control piston
64
are made of ceramic material that can be sealedly matched, no seal rings are needed, making the moving elements smoothly operated with ease.
In summary, the present invention has the following advantages in use:
1. Waste in toilet bowl can be flushed with economic amount of water.
2. It is effectively operated because of production of siphon states in a toilet bowl which can suck waste therein efficiently out of the toilet bowl.
3. The smoother flushing slopes in the toilet bowl make discharge of waste and filthy water out of toilet bowl fast without producing turbulent whirlpool therein.
Claims
- 1. A toilet bowl in combination with a pressurized flush tank, said toilet bowl being connected to said pressurized flush tank by way of a water pipe; wherein:said pressurized flush tank has a float piston limitedly movable up and down in response to variation of water level in said flush tank; a spring disposed on top of said float piston is compressible and extendible in response to upward and downward movement of said float piston as a result of variation of water level in said flush tank whereby pressure can be produced on water in the flush tank when said water is discharged out of said flush tank by said float piston pressurized by said compressed spring; a positioning plate disposed at a bottom side of said float piston; a control valve set is engaged with said flush tank for controlling input of water into said flush tank; said control valve set including a valve unit; said valve unit has a tubular case in which a control piston is movable up and down and a water outlet is defined on a wall of said valve unit; said valve unit communicates with a water source and said control piston has a water discharge tunnel; a spring is disposed on top of said control piston so as to make said control piston retractably movable up and down; said control piston is connected to a float which is movably housed in said tank by way of a flexible wire so as to make said control piston move in accordance with water level in said flush tank; water flows into said flush tank when said control piston moves to such a position that said water discharge tunnel of said control piston comes into alignment with both said water source and said water outlet of said valve unit; a seal cap disposed at a bottom of said flush tank is in closing and opening engagement with a discharge pipe head; a control handle pivotal fixed to said flush tank is connected to said seal cap so as to permit said seal cap to open when said control handle is activated; said seal cap can be closed by said positioning plate fixed to said float piston when water level in said flush tank is dropped to such an extent that said float piston moves down along with dropped water level to allow said positioning plate to touch said seal cap pivoted to open by said control handle; whereby said toilet bowl has a downwardly extended flushing slope from a periphery thereof and has a water collection area defined at a bottom end of said flushing slope; a plurality of flush holes are disposed on said periphery of said toilet bowl; said flush holes communicate with a water inlet path which is connected to said flush tank; a goose neck shaped waste discharge path in connection to said water collection area; a vacuum chamber is defined at a sharp turn of said goose neck shaped waste discharge path adjacent to said water collection area; a first water flushing passage communicating with said water inlet path at one end communicates with said vacuum chamber of said waste discharge path at another end; a second water flushing passage disposed under said flushing slope communicates with said water collection area; whereby a siphon state can be produced in said vacuum chamber of said goose neck shaped waste discharge path when water is flushed out of said first and second water flushing passage and said flush holes of said toilet bowl to effectively speed up the discharge of waste and filth water accumulated in said water collection area of said toilet bowl.
- 2. The toilet bowl in combination with a pressurized flush tank as claimed in claim 1 wherein:said float piston has a float receiving cavity so as to permit said float to be fit therein when said float and said float piston come into contact with each other.
- 3. The toilet bowl in combination with a pressurized flush tank as claimed in claim 1 wherein said flush tank is of a cylindrical shape.
- 4. The toilet bowl in combination with a pressurized flush tank as claimed in claim 1 wherein said flush tank has a pair of symmetric vertical slide tracks partially disposed on an inner wall thereof so as to permit said float piston to limitedly move up and down in response to the variation of water level.
US Referenced Citations (6)